Curbing tool



FIG. 1 is a perspective view of a curbing tool according to the present invention;

FIG. 2 is a top plan view of the curbing tool of the present invention;

FIG. 3 is a front elevational view of the curbing tool of the present invention; the rear view being identical;

FIG. 4 is a side elevational view of the curbing tool of the present invention; the opposite side view being identical; and,

FIG. 5 is a bottom plan view of the curbing tool of the present invention. 

The ornamental design for a curbing tool, as shown and described. 